And Shanina Shaik certainly had reason to celebrate on Saturday, taking to Instagram to share snaps of her 26th birthday.

The beauty flashed major side boob in a slinky black frock, before captioning an adorable photo of a cake featuring her much-younger self: 'Grown and sexy'.

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'Grown and sexy': Shanina Shaik, 25, took to Instagram on Saturday, flashing MAJOR side boob in a slinky black frock, before celebrating her 26th birthday with an adorable cake featuring her much-younger self

Posing in a bar space with her name spelled out in helium balloons, Shanina sizzled.

A black slinky frock offered a glimpse of her toned back and a significant amount of side boob.

The couple have been dating since mid-2015, with Ruckus proposing to his lady love in January 2016.

The in-demand model recently revealed she hadn't had soft drink in almost a decade as part of her regime to look her best.

'I always make sure I'm drinking plenty of water, working out consistently, eating healthy and fresh food, and getting at least eight hours of sleep every night,' Shanina told The New Potato.

'I like to mix up my workouts so I never get bored with my training or going to the gym. No workout is overrated.'

Her secrets: Shanina recently revealed to The New Potato that she hadn't had soft drink in almost a decade as part of her regime to look her best. 'I always make sure I'm drinking plenty of water, working out consistently, eating healthy and fresh food,' she told the publication